- A marked increase in drilling for coalbed gas has occurred in southeastern Kansas in the last three years, with a commensurate increase in coalbed gas production.
- Most of the activity for coalbed gas has been in southeastern Kansas in the Cherokee basin, but isolated projects farther north in the Bourbon arch and Forest City basin are in progress.
- Most Kansas coals are thin (<2 ft [0.6 m] thick), but several can be encountered in a given well. Water pumped from the coals is easily disposed, usually into the Arbuckle Dolomite, which lies a few hundred feet below the deepest coals.
- The Forest City basin has several coal seams that are likely older than the Riverton coal, which is generally the oldest coal in the Cherokee basin and Bourbon arch.
- Thickness trends in many coals follow a NNE-SSW depositional strike.
- Thermal maturation increases southward into the Cherokee basin. This increase in maturation is manifest in the greater heating values of conventional gas and coalbed gas in this region.
- A mixed biogenic and thermogenic origin of the coalbed gas in eastern Kansas is indicated by gas chemistry and stable isotopes. Some of the biogenic gas may be due to biogenic oxidation of existing hydrocarbons.
- Possible biogenic and thermogenic production fairways may be present in eastern Kansas.
- Ayres, W.B., Jr., 2002, Coalbed gas systems, resources, and production and a review of contrasting cases from the San Juan and Powder River basins: American Association of Petroleum Geologists, Bulletin, v. 86, p. 1853-1890.
- Bostic, J., Brady, L., Howes, M., Burchett, R., and Pierce, 1993, Investigation of the coal properties and the potential for coal-bed methane in the Forest City basin: United States Geological Survey, Open-File Report 93-576, 44 p.
- Bostick, N.H., and Daws, T.A., 1994, Relationships between data from Rock-Eval pyrolysis and proximate, ultimate, petrographic, and physical samples of 142 diverse U.S. coal samples: Organic Geochemistry, v. 21, p. 35-49
- Barker, C.E., Goldstein, R.H., Hatch, J.R., and Walton, A.W., and Wojcik, K.M., 1992, Burial history and thermal maturation of Pennsylvanian rock, Cherokee basin, southeastern Kansas: Oklahoma Geological Survey, Circular 93, p. 299-310.
- Brady, L.L, 1997, Kansas coal resources and their potential for coalbed methane, in McMahan, G., ed., Transactions of the AAPG Mid-Continent Section Meeting, Sept. 14-16, 1997, Oklahoma City, p. 150-163.
- Boyer, C.M., II, 1989, The coalbed methane resource and the mechanisms of gas production: GRI Topical Report GRI-89- 0266, p. 46.
- Cardott, B.J., 2001, Coalbed methane activity in Oklahoma, 2001, Oklahoma Coalbed-Methane Workshop: Oklahoma Geological Survey, Open-File Report of 2-2001, p. 93-139.
- Curtis J.B., 2002, Fractured shale-gas systems: American Association of Petroleum Geologists, Bulletin, v. 86, p. 1921- 1838.
- EIA, 2003, U.S. crude oil, natural gas, and natural gas liquids reserves 2002 Annual Report: http://www.eia.doe.gov/oil_gas/natural_gas/data_publications/ crude_oil_natural_gas_reserves/cr.html.
- GTI (Gas Technology Institute), 2001, North American coalbed methane resource map: Gas Technology Institute, GTI- 01/0165, 1 sheet.
- Hamak, J.E., and Driskill, D.L., 1996, Analyses of natural gases, 1994-95: United States Department of Interior, Bureau of Land Management, Technical Note 399, 68 p.
- Jenden, P.D., Newell, K.D., Kaplan, I.R., and Watney, W.L., 1988, Composition and stable isotope geochemistry of natural gases from Kansas, Midcontinent, U.S.A.: Chemical Geology, v. 71, p. 117-147.
- Johnson, T.A., in progress, Stratigraphy, depositional environments, and coalbed gas potential of Middle Pennsylvanian (Desmoinesian Stage) coals Bourbon arch region, eastern Kansas: M.S. Thesis, University of Kansas, Lawrence, KS.
- Lange, J.P., 2001, Stratigraphy, depositional environments, and coalbed gas resources of the Cherokee group (Middle Pennsylvanian) southeastern Kansas: M.S. Thesis, University of Kansas, Lawrence, KS, 257 p.
- Lange, J.P.; Carr, T.R.; and Newell, K.D., 2003, Stratigraphy, depositional environments and coalbed methane resources of Cherokee Group coals (Middle Pennsylvanian)--southeastern Kansas: Kansas Geological Survey, Open-file Report, no. 2003-28. [available online]
- Martini, A.M., Walter, L.M., Ku. T.C.W., Budai, J. M., McIntosh, J.C., and Schoell, M., 2003, Microbial production and modification of gases in sedimentary basins; a geochemical case study from a Devonian shale gas play, Michigan basin: American Association of Petroleum Geologists, Bulletin, v. 87, p. 1355-1376.
- Macfarlane, P.A., and Hathaway, L.R., 1987, The hydrogeology and chemical quality of ground waters from the Lower Paleozoic aquifers in the Tri-state region of Kansas, Missouri, and Oklahoma: Kansas Geological Survey, Ground-Water Series, no. 9, 37 p. [available online]
- McLennan, J.D., Schafer, P.S., and Pratt, T.J., 1995, A guide to determining coalbed gas content: Gas Research Institute, GRI-94/0396, p. 10.19.
- Merriam, D.F., 1963, The geologic history of Kansas: Kansas Geological Survey, Bulletin 162, 317 p. [available online]
- Nelson, C. R., 1999, Changing perceptions regarding the size and production potential of coalbed methane resources: Gas Research Institute, Gas Tips, Summer 1999, v. 5, no. 2, p. 4-11.
- Newell, K.D., 1997, Comparison of maturation data and fluid-inclusion homogenization temperatures to simple thermal models; implications for thermal history and fluid flow in the Mid-continent: Kansas Geological Survey Current Research in Earth Sciences, Bulletin 240, p. 13-27. [available online]
- Newell, K.D., Brady, L.L., Lange, J.P., and Carr, T.R., 2002, Coalbed gas play emerges in eastern Kansas basins: The Oil and Gas Journal, December 23, p. 36-41.
- Saulsberry, J.L., Schafer, P.S., and Schraufnagel, R.A., 1996, A guide to coalbed methane reservoir engineering: Gas Research Institute, p. 2.9.
- Schoell, M., Muehlenbachs, K, Coleman, S., Thibodeaux, S., Walters, L., and Martini, A., 2001, Natural sites of bioconversion of CO2 and hydrocarbons in the subsurface; San Juan basin and Michigan basin (abs.): American Association of Petroleum Geologists Annual meeting Program, v. 10, p. A180.
- Scott, A.R., 1999, Review of key hydrologic factors affecting coalbed methane producibility and resource assessment, in Cardott, B.J., comp., Oklahoma Coalbed-Methane Workshop: Oklahoma Geological Survey, Open-File Report of 6-99, p. 12-36.
- Trumbull, J.V.A., 1960, Coal Map of the United States: U.S. Geological Survey, 1 sheet.
- Walter, L.M., McIntosh, A.M., Martini, A.M., and Budai, J.M., 2001, Hydrogeochemistry of the New Albany Shale: Gas Research Institute, GRI-00, 0158, 58 p.
Last updated May 2004